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WO1991001927A1 - Emballage pour les produits alimentaires, en particulier les produits de boulangerie-patisserie, comme le pain, les gateaux, etc - Google Patents

Emballage pour les produits alimentaires, en particulier les produits de boulangerie-patisserie, comme le pain, les gateaux, etc Download PDF

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Publication number
WO1991001927A1
WO1991001927A1 PCT/EP1990/001113 EP9001113W WO9101927A1 WO 1991001927 A1 WO1991001927 A1 WO 1991001927A1 EP 9001113 W EP9001113 W EP 9001113W WO 9101927 A1 WO9101927 A1 WO 9101927A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging
sealing seam
interruption
transverse sealing
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1990/001113
Other languages
German (de)
English (en)
Inventor
Klaus H. Gleitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1991001927A1 publication Critical patent/WO1991001927A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/36—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits

Definitions

  • Packaging for food in particular baked goods, such as bread, cake or the like.
  • the invention relates to a packaging for foodstuffs to be exposed after the packaging of a heat treatment, in particular baked goods such as bread, cakes or the like, made of a packaging material enveloping the foodstuffs, in particular of heat-sealable composite or plastic film, with at least at least a sealed seam in the area of overlapping edges of the packaging.
  • Baked goods such as sliced bread, sliced toast or the like, are usually wrapped in thin-walled packaging film and then, e.g. B. sealed by sealing. To improve the shelf life of the packaged baked goods They are then sterilized or pasteurized after packaging, specifically at elevated temperatures. With this type of heat treatment, water vapor is generated inside the packaging with the formation of a corresponding excess pressure. This can lead to the packaging bursting at weak points or opening, and spores leading to mold formation being able to penetrate within a very short time.
  • a package consisting of a polyvinyl chloride bag is known, which is welded or glued on its open side by pressure and heat.
  • an additional small hole is provided in the packaging, which must be closed by an adhesive strip at the end of the packaging process.
  • This type of packaging is complex since an opening must additionally be provided in the packaging material and this opening must also be additionally closed. This closing not only requires an additional work step, but also has to be carried out immediately after the sterilization, because otherwise mold spores can penetrate again through the opening.
  • Certain baked goods, e.g. B. toast bread are very soft when heated and therefore not manageable. In particular, no stickers can be applied in this state. This is only possible again in the cooled state.
  • the invention is not limited to a specific packaging system. Rather, it can be used, inter alia, in the case of tubular packaging, full wrapping or packaging in ready-made bags.
  • the main application is in the field of tubular bag packaging.
  • a pressure equalization is created in the packaging during the sterilization or pasteurization process, in that the water vapor generated inside the packaging can escape to the outside through the deliberately provided openings in the area of the sealed seam, these openings subsequently being released close automatically.
  • the deliberately designed openings in the area of the sealing seam and their closing after sterilization or pasteurization ensure that the packaging is airtight, aroma-tight and moisture-tight before delivery. There is no communication between the contents of the pack and the environment that promotes mold formation.
  • the packaging is designed as a tubular bag with two mutually opposite, frontal transverse sealing seams. One transverse sealing seam is closed continuously and the other, diametrical transverse sealing seam is formed with at least one interruption.
  • the tubular bag packaging is particularly for a box-shaped packaging content, for. B. sliced Taost bread, suitable.
  • the transverse sealing seams are preferably through the inward folding the packaging edges formed. In this way, mutually opposite partial regions of the transverse sealing seam are created, each of which has four layers and two layers in a central intermediate region.
  • the interruption of the transverse sealing seam is provided in this preferred embodiment in the two-layer section, with a heat, e.g. B. during the sterilization of the package, meltable and solidifying upon cooling coating in the area of the interruption.
  • the previously described embodiment of the packaging with the interruption in the two-layer area of the transverse sealing seam is particularly conducive to an efficient packaging process.
  • the packaging edges are held inwards in order to avoid the packaging edges projecting beyond the packaging. in one, only theoretically achievable. Ideally, this creates a consistently four-layer area of the packaging.
  • the packaging edges are • not folded all the way in to the middle, so that the already mentioned two-layered section is created in the middle.
  • the two-layer part is thinner overall than the four-layer part.
  • a sealing tool for producing the transverse sealing seam should have a slight projection in the center which fits exactly into the two-layer sub-area mentioned.
  • the precision of previous packaging steps should be correspondingly high.
  • the interruption of the transverse sealing seam is provided exactly in the two-layer part.
  • a completely planar sealing jaw can be used to produce the transverse sealing seam, since only the four-layer sub-areas have to be completely closed by this sealing process.
  • the coating provided in the area of the interruption e.g. B. hot glue. Wax or the like. Melts wälend to sterilization to the corresponding Wasser ⁇ vapor Stammzulas' sen. When it cools down, the coating solidifies and closes the sealing seam automatically.
  • at least one transverse sealing seam has two protruding wrapping material tabs which can be pulled apart in a diametrical direction for the purpose of opening the package. After opening the packaging and removing the product, e.g. B. a slice of toast, the packaging can be closed again by folding the tabs.
  • the openings created for the purpose of pressure compensation in the area of at least one sealing seam have a width of approximately 1.5 to 10.0 mm, in particular approximately 2.0 mm.
  • FIG. 2a, 2b an embodiment of the packaging according to the invention with inward-turned side edges in the area of a sealing seam on the end face, each in a schematic plan view of an end face;
  • Fig. 3 shows a packaging according to the invention in a schematic
  • the packaging process is first described in more detail.
  • the product to be packaged is a group 10 of slices of toast that lie close together.
  • the product 10 to be packaged is conveyed in the direction of the arrow 11 through the packaging unit, not shown.
  • the corresponding conveyor belt is provided with the reference number 12. Accordingly, the cut toast bread 10 is first placed within a tubular film section 13.
  • a cross-seam seal is then carried out on the end face, the front cross-seal seam 14 seen in the conveying direction 11 being to be closed continuously, while the diametrically arranged cross-seal seam 15 has at least one interruption or opening 16 through which a seal occurs during hot sterilization or pasteurization Pressure equalization takes place between the inner and outer packaging and through which water vapor developing inside the packaging can escape, particularly during sterilization or pasteurization (see arrow 17).
  • the aforementioned sterilization or pasteurization at elevated temperature takes place within a separate station 18 of the packaging unit, which is not shown in detail. After leaving the sterilization or pasteurization station 18, the package and its contents 10 are cooled again to ambient temperature. Either the opening 16 is automatically closed in the area of the transverse sealing seam 15; or the opening 16 is then resealed, e.g. B. by an adhesive label or separate sealing tools, so that the transverse sealing seam 15th
  • FIG. 2a, 2b show a first embodiment of the packaging according to the invention, in each case in a top view of an end face.
  • the group of toast bread slices 10 is arranged within the tubular film 13, but this is not yet closed.
  • a left and a right side edge 19, 20 are already bent somewhat inwards.
  • On the upper side edge 21, a tab 22 formed by the tubular bag seam can be seen. This extends over the entire length of the tubular film 13 and lies against the same.
  • the lower side edge 23 lies opposite the upper side edge 21.
  • FIG. 2b shows the packaging according to FIG. 2a, but with inwardly folded side edges 19, 20.
  • Duplications 24, 25 of the left side edge 19, as well as 26, 27 of the left side, created by the folding right side margins 20 20 are drawn at a distance from one another in FIG. 2b.
  • the transverse sealing seam 15 (not shown in FIGS. 2a, 2b) runs along the arrow 28 after the sealing process, ie over the doubles 24 to 27. The latter lie against one another.
  • the tubular film 13 is formed in four layers in the area of the transverse sealing seam 15 in partial areas thereof, namely where the doubles 24 and 25 and on the other hand 26 and 27 abut one another.
  • Two gussets 29, 30 which delimit the doubles 24 to 27 inwards simultaneously mark between them a partial region 31 which is formed only in two layers.
  • transverse sealing seam 15 is also sealed in an airtight and aroma-tight manner in this area.
  • a continuously closed transverse sealing seam 15 is formed automatically in accordance with the transverse sealing seam 14 not shown in FIGS. 2a, 2b.
  • the coating 32 extends approximately over a length which corresponds approximately to the width of the transverse sealing seam 15. At least the coating 32 should extend over 1.5 mm, preferably about 5-10 mm.
  • two fields 33, 34 which are arranged at a distance from one another, are provided with hot glue or wax in the area of the transverse sealing seam 15, which remain open during the usual production of the transverse sealing seam 15 with the formation of pressure compensation openings.
  • the hot glue or the wax melts here as well as before the coating 32 in FIG. 2b heats up and distributes itself evenly.
  • the airtight and aroma-tight, continuously closed transverse sealing seam 15 is in turn formed.
  • On- place of the two interruptions (fields 33, 34) can also more, z. B. five interruptions may be provided.
  • the sealing medium itself is set in such a way that it melts at the sterilizing or pasteurizing temperature in order to then hermetically seal the fields 33, 34 when cooling, forming a continuously closed transverse sealing seam 15 corresponding to the transverse sealing seam 14.
  • the sealing surfaces, i. H. the tubular film 13 in the area of the transverse sealing seam 15 are each facet-coated in this exemplary embodiment.
  • FIG. 3 shows two wrapping material tabs 36 which extend beyond the transverse sealing seam 15 and which considerably facilitate opening of the packaging or the film 13 at the end. To open the two wrapping material tabs 36 are pulled apart in a diametrical direction. On the ißcardi is indicated in Fig. 3 with the reference number 37. After this
  • the packaging can be closed again by folding the tabs 36.
  • This embodiment is preferably peculiar to all of the packaging described above.
  • the length of the opening fields 33, 34 in the area of the transverse sealing seam 15 corresponds in total to approximately twice the width of the transverse sealing seam 15. A sufficient pressure compensation is then ensured during sterilization or pasteurization, so that an uncontrolled bursting of the packaging is avoided.
  • the length-width relationship mentioned also applies analogously to the dimensioning of the coating 32 in FIGS. 2a, 2b.
  • the individual fields 33, 34 are about 0.5 to 5.0 mm long,
  • the tubular film 13 consists of a conventional packaging kungsmaterial, z. B. from a polyethylene film or plastic-coated paper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

Emballage pour des produits alimentaires devant recevoir un traitement thermique après avoir été emballés, en particulier les produits de boulangerie-pâtisserie, comme le pain, les gâteaux, etc., constitué d'un matériau d'emballage entourant les produits, réalisé en particulier dans une feuille composite ou de matière plastique thermosoudable, avec au moins un cordon de scellement au niveau des extrémités superposées de l'emballage, emballage avec lequel le cordon de scellement (15) n'est pas scellé au niveau d'une interruption au moins (sous-domaine (31), champs (33, 34)), avec formation d'une ouverture pour évacuer la vapeur d'eau formée à l'intérieur de l'emballage pendant la stérilisation ou la pasteurisation, et en ce qu'il est prévu, dans la région de l'interruption (31, 33, 34) un revêtement (32) fondant à la chaleur et durcissant au refroidissement, comme une colle à chaud, une colle thermofusible cire ou un moyen de scellement similaire.
PCT/EP1990/001113 1989-08-02 1990-07-09 Emballage pour les produits alimentaires, en particulier les produits de boulangerie-patisserie, comme le pain, les gateaux, etc Ceased WO1991001927A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3925622.7 1989-08-02
DE19893925622 DE3925622A1 (de) 1989-08-02 1989-08-02 Verpackung fuer lebensmittel, insbesondere backwaren, wie brot, kuchen oder dgl.

Publications (1)

Publication Number Publication Date
WO1991001927A1 true WO1991001927A1 (fr) 1991-02-21

Family

ID=6386385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001113 Ceased WO1991001927A1 (fr) 1989-08-02 1990-07-09 Emballage pour les produits alimentaires, en particulier les produits de boulangerie-patisserie, comme le pain, les gateaux, etc

Country Status (2)

Country Link
DE (1) DE3925622A1 (fr)
WO (1) WO1991001927A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602380A1 (fr) * 1992-12-15 1994-06-22 Mmm Münchener Medizin Mechanik Gmbh Récipient pour la stérilisation et la désinfection
WO2008096388A1 (fr) * 2007-02-08 2008-08-14 Claudio Ernestino Zanarella Contenant pour cuisson d'aliments
FR2981052A1 (fr) * 2011-10-10 2013-04-12 S2F Flexico Sachet pour sterilisation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2796924B1 (fr) * 1999-07-29 2001-10-19 Proplast Valve et emballage a valve,notamment pour cuisson d'aliments
FR2796923B1 (fr) * 1999-07-29 2001-10-19 Proplast Valve et emballage a valve, notamment pour cuisson d'aliments
FR2852921B1 (fr) * 2003-03-24 2006-03-03 Microondes Syst Sa Procede et installation pour chauffer et conditionner un produit dans un emballage, et emballage utilise
DE102021115953B4 (de) 2021-06-21 2024-02-22 Rovema Gmbh Schlauchbeutel mit zumindest einer Siegelnaht und Schlauchbeutelmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858818C (de) * 1943-04-13 1952-12-08 Basf Ag Verfahren zur Herstellung von Dauerverpackungen fuer Backwaren
FR2178397A5 (fr) * 1972-03-30 1973-11-09 Aquitaine Total Emballag
FR2599716A1 (fr) * 1986-06-09 1987-12-11 Planchard Christian Dispositif pour la conservation, la stabilisation, le transport et la distribution d'echantillons d'essence aromatique
EP0156404B1 (fr) * 1984-02-06 1988-05-18 Wavin B.V. Procédé pour l'emballage de produits, utilisant un traitement à chaud, et récipient fermé contenant les produits obtenus en emballés utilisant un traitement à chaud

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858818C (de) * 1943-04-13 1952-12-08 Basf Ag Verfahren zur Herstellung von Dauerverpackungen fuer Backwaren
FR2178397A5 (fr) * 1972-03-30 1973-11-09 Aquitaine Total Emballag
EP0156404B1 (fr) * 1984-02-06 1988-05-18 Wavin B.V. Procédé pour l'emballage de produits, utilisant un traitement à chaud, et récipient fermé contenant les produits obtenus en emballés utilisant un traitement à chaud
FR2599716A1 (fr) * 1986-06-09 1987-12-11 Planchard Christian Dispositif pour la conservation, la stabilisation, le transport et la distribution d'echantillons d'essence aromatique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602380A1 (fr) * 1992-12-15 1994-06-22 Mmm Münchener Medizin Mechanik Gmbh Récipient pour la stérilisation et la désinfection
WO2008096388A1 (fr) * 2007-02-08 2008-08-14 Claudio Ernestino Zanarella Contenant pour cuisson d'aliments
FR2981052A1 (fr) * 2011-10-10 2013-04-12 S2F Flexico Sachet pour sterilisation
EP2581322A1 (fr) 2011-10-10 2013-04-17 S2F Flexico Sachet pour stérilisation

Also Published As

Publication number Publication date
DE3925622A1 (de) 1991-02-07

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